The compound, a2z3, is a made-up compound. if this is an ionic compound, name two elements that a & z may be?

Hello!

If A₂Z₃ is an ionic compound, the ions that form it would be A⁺³ and Z⁻².

The atoms that can form A⁺³ ions are in the 13th group of the periodic table, so two elements that can be A are Aluminum (Al) and Galium (Ga).

The atoms that can form Z⁻² ions are in the 16th group of the periodic table, so two elements that can be Z are Oxygen (O) and Sulfur (S). 

Al₂O₃ (Aluminum Oxide) is an example of an A₂Z₃ compound

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